In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____

Moisture in the windings

Movement / damage to internal components

Aging by-products

Age of the insulation

Moisture in the windings

Movement / damage to internal components

Aging by-products

Age of the insulation

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MGVCL Exam Paper (30-07-2021 Shift 2)
Calculate the inductance per meter of a 50 Ω load cable that has an capacitance of 20 pF/m.

50 nH

50 mH

25 mH

25 nH

50 nH

50 mH

25 mH

25 nH

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MGVCL Exam Paper (30-07-2021 Shift 2)
If the velocity of electromagnetic wave in free space is 3 × 10⁸ m/s, then the velocity in a medium with εr of 4.5 and μr of 2 would be

9 × 10⁸ m/s

3 × 10⁸ m/s

1 × 10⁸ m/s

27 × 10⁸ m/s

9 × 10⁸ m/s

3 × 10⁸ m/s

1 × 10⁸ m/s

27 × 10⁸ m/s

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MGVCL Exam Paper (30-07-2021 Shift 2)
A MOSFET rated for 15 A, carries a periodic current as shown in figure. The ON state resistance of the MOSFET is 0.15 Ω. The average ON state loss in the MOSFET is

7.5 W

33.8 W

15 W

3.8 W

7.5 W

33.8 W

15 W

3.8 W

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MGVCL Exam Paper (30-07-2021 Shift 2)
Thermocouples can be connected in series/parallel to obtain greater sensitivity called as

Thermopile

None of these

Thermistor

Thermometer

Thermopile

None of these

Thermistor

Thermometer

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MGVCL Exam Paper (30-07-2021 Shift 2)
The expression for voltage regulation of a short transmission line for leading power factor is given by: ____, where, 'I' is the line current, 'V_r' is the receiving end voltage, 'R' is the line resitance and 'X' is the line reactance.

(IXcosφ_r - IRsinφ_r)/V_r

(IXcosφ_r + IRsinφ_r)/V_r

(IRcosφ_r + IXsinφ_r)/V_r

(IRcosφ_r - IXsinφ_r)/V_r

(IXcosφ_r - IRsinφ_r)/V_r

(IXcosφ_r + IRsinφ_r)/V_r

(IRcosφ_r + IXsinφ_r)/V_r

(IRcosφ_r - IXsinφ_r)/V_r

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MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2) In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____

MGVCL Exam Paper (30-07-2021 Shift 2) Calculate the inductance per meter of a 50 Ω load cable that has an capacitance of 20 pF/m.

MGVCL Exam Paper (30-07-2021 Shift 2) If the velocity of electromagnetic wave in free space is 3 × 10⁸ m/s, then the velocity in a medium with εr of 4.5 and μr of 2 would be

MGVCL Exam Paper (30-07-2021 Shift 2) A MOSFET rated for 15 A, carries a periodic current as shown in figure. The ON state resistance of the MOSFET is 0.15 Ω. The average ON state loss in the MOSFET is

MGVCL Exam Paper (30-07-2021 Shift 2) Thermocouples can be connected in series/parallel to obtain greater sensitivity called as

MGVCL Exam Paper (30-07-2021 Shift 2) The expression for voltage regulation of a short transmission line for leading power factor is given by: ____, where, 'I' is the line current, 'V_r' is the receiving end voltage, 'R' is the line resitance and 'X' is the line reactance.

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____

MGVCL Exam Paper (30-07-2021 Shift 2)
Calculate the inductance per meter of a 50 Ω load cable that has an capacitance of 20 pF/m.

MGVCL Exam Paper (30-07-2021 Shift 2)
If the velocity of electromagnetic wave in free space is 3 × 10⁸ m/s, then the velocity in a medium with εr of 4.5 and μr of 2 would be

MGVCL Exam Paper (30-07-2021 Shift 2)
A MOSFET rated for 15 A, carries a periodic current as shown in figure. The ON state resistance of the MOSFET is 0.15 Ω. The average ON state loss in the MOSFET is

MGVCL Exam Paper (30-07-2021 Shift 2)
Thermocouples can be connected in series/parallel to obtain greater sensitivity called as

MGVCL Exam Paper (30-07-2021 Shift 2)
The expression for voltage regulation of a short transmission line for leading power factor is given by: ____, where, 'I' is the line current, 'V_r' is the receiving end voltage, 'R' is the line resitance and 'X' is the line reactance.